Improvement in water-pressure regulators



C. H. SHELLY.

WATER PRESSURE REGULATGR.

No.176,489. Patented Apri125, 1876.

QMIIIIIMWY WITNEBSES- INVENTOR- 'NPEYERS. FHOTU-UTNOGRAPHER. WASHINGTON.O. G. I

UNITED STATES PATENT OFFICE.

CHARLES H. SHELLY, OF PROVIDENCE, RHODE ISLAND.

IMPROVEMENT IN WATER-PRESSURE REGULATORS.

Specification forming part of Letters Patent No. 176.489, dated April25, 1876; application filed April 7, 1876.

To all whom it may concern:

Be it known that I, CHARLES H. SHELLY, of Providence, in the State ofRhode Island, have inventeda new and useful Water-Pressure Regulator;and I do hereby declare that the following specification, taken inconnection with the drawing making a part of the same, is a full, clear,and exact description thereof.

Figure 1 is a view of my device.

The object of my invention is to produce a means for regulating thepressure of the water upon the pipes in houses and other buildings, andconsists in the device for that purpose hereinafter described.

It is well understood that in cities into which water has beenintroduced a large quantity is constantly keptv on hand in thereservoirs, sufficient for the wants of the people for many days shouldthe supply through accident become out off, and at the same time meetany sudden demand that may be made in case of fire or of damage to themain pipes. This head of water, being greater than is requisite to raiseit to the desired height, produces a corresponding strain upon thepipes, which not unfrequently bursts them and floods the building. Sucha result may be avoided by placing a tank in the upper part of thebuildin g, into which the water flows through a very strong pipe, andfrom which it is distributed through the ordinary pipes.

My invention does away with the necessity of a tank; it is easilyadjusted and relieves the pipes from unnecessary pressure.

In my invention, A is a perpendicular section of pipe, to an arm, B, ofwhich is attached a perpendicular cylinder, 0, into which works apiston,D. The supply-pipe is attached to the upper end of the pipe A, and thewater is discharged from the regulator through the pipe E, whichconnects the lower end of the cylinder 0 with the pipes going throughthe building.

Near the upper end of the pipe Ais a valve, F, which is operated by thepistonD through the sleeved lever Gr.

Upon the upper end of the piston D is a cup, H, in which rests asuitable weight, the size of which is determined by the amount ofpressure desired.

Commencing with the several parts in the position shown in the drawing,upon the opening of a faucet in the building the weight in the cup Hforces down the piston D, and drives the water in the cylinder 0 intothe pipe E. As the piston D descends it operates and opens the valve F,and establishes a flow of water from the street to the open faucet, thepressure in the pipes between the regulator and the faucet being reducedin proportion to the size of the weight upon the piston D.

Upon the closing of the faucet the pressure of the water upon the pistonD raises it to its former position and closes the valve F, thusrelieving the pipes from any strain until a faucet is again opened.

What I claim as my invention, and desire to secure by Letters Patent,is-- The automatic waterpressure regulator herein described, consistingof the pipe A, valve F, cylinder 0, and weighted piston D, the wholeconstructed and operating together in the manner substantially asdescribed.

CHARLES H. SHELLY.

Witnesses:

WALTER B. VINCENT, J. T. RICH.

